A constant torque electric motor is used to drive the punching press. The press is provided with a flywheel that rotates at maximum speed of 125 r.p.m. The radius of gyration of the flywheel is 0.6 m. The press punches 200 holes per hour, each punching operation takes 1.5 second and requires 16 kNm of energy. Calculate the power of the motor and the minimum mass of the flywheel, if its speed is not to fall below 100 r. p. m

Elements Of Electromagnetics
7th Edition
ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
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A constant torque electric motor is used to drive the punching press. The press
is provided with a flywheel that rotates at maximum speed of 125 r.p.m. The
radius of gyration of the flywheel is 0.6 m. The press punches 200 holes per
hour, each punching operation takes 1.5 second and requires 16 kNm of
energy. Calculate the power of the motor and the minimum mass of the
flywheel, if its speed is not to fall below 100 r. p. m

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